MESON Chess Problem Database
Problem Display
PID: 237674 (r7/p3p3/K3p2Q/2B1kp1p/4P1nR/1R4n1/B1N1p1N1/b7 w - - 0 1)
Shanshin, Valery Yurevich
Variantim, 2019
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Kxe4
- 2.Re3#
- 1...Sf2
- 2.Qg7#
- 1...Sh2
- 2.Qg7#
- 1...Se3
- 2.Qg7#
- 1...Sf6
- 2.Qf4#
- 1...f4
- 2.Qxf4#
- 1...Kxe4
- Tries
- 1.Bxe7?
- threat
- 2.Qf4#
- 1...Kxe4
- 2.Re3#
- 1...Sxh6
- 2.Rb5#
- 1...fxe4
- 2.Rb5#
- 1...f4
- 2.Qxf4#
- 1...Sxe4!
- threat
- 1.Rb1?
- threat
- 2.Qxe6#
- 1...Kxe4
- 2.Qe3#
- 1...Sf6
- 2.Qf4#
- 1...Sxh6!
- threat
- 1.Rb2?
- threat
- 2.Qxe6#
- 1...Kxe4
- 2.Qe3#
- 1...Sf6
- 2.Qf4#
- 1...Sxh6!
- threat
- 1.Ra3?
- threat
- 2.Qxe6#
- 1...Kxe4
- 2.Re3#
- 2.Qe3#
- 2.Qf4#
- 1...Sf6
- 2.Qf4#
- 1...Sxh6!
- threat
- 1.Rc3?
- threat
- 2.Qxe6#
- 1...Kxe4
- 2.Re3#
- 2.Qe3#
- 2.Qf4#
- 2.Qxe6#
- 1...Sf6
- 2.Qf4#
- 1...Sxh6!
- threat
- 1.Rd3?
- threat
- 2.Qxe6#
- 1...Kxe4
- 2.Re3#
- 2.Qe3#
- 1...Sf6
- 2.Qf4#
- 1...Sxh6!
- threat
- 1.Re3?
- threat
- 2.Qxe6#
- 1...Sf6
- 2.Qf4#
- 1...Sxh6!
- threat
- 1.Rf3?
- threat
- 2.Qxe6#
- 1...Kxe4
- 2.Re3#
- 2.Qe3#
- 2.Qf4#
- 1...Sf6
- 2.Qf4#
- 1...Sxh6!
- threat
- 1.Rxg3?
- threat
- 2.Qxe6#
- 1...Kxe4
- 2.Re3#
- 2.Qe3#
- 2.Qf4#
- 1...Sf6
- 2.Qf4#
- 1...Sxh6!
- threat
- 1.Rb4?
- threat
- 2.Qxe6#
- 1...Sf6
- 2.Qf4#
- 1...Sxh6!
- threat
- 1.Rb6?
- threat
- 2.Rxe6#
- 2.Qxe6#
- 1...Kxe4
- 2.Qe3#
- 1...Sxh6
- 2.Rxe6#
- 1...fxe4
- 2.Qf4#
- 2.Qxe6#
- 1...Sf6
- 2.Rxe6#
- 2.Qf4#
- 1...axb6+!
- threat
- 1.Rb7?
- threat
- 2.Qxe6#
- 1...Kxe4
- 2.Qe3#
- 1...Sf6
- 2.Qf4#
- 1...Sxh6!
- threat
- 1.Rb8?
- threat
- 2.Qxe6#
- 1...Kxe4
- 2.Qe3#
- 1...Sf6
- 2.Qf4#
- 1...Sxh6!
- threat
- 1.Qg7+?
- 1...Kxe4
- 2.Re3#
- 1...Sf6!
- 1...Kxe4
- 1.Bxe7?
- Keys
- 1.Rb5!
- threat
- 2.Qxe6#
- 1...Kxe4
- 2.Qe3#
- 1...Sxh6
- 2.Bxe7#
- 1...Sf6
- 2.Qf4#
- threat
- 1.Rb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- K(e);OGATEB,P-FLIGHT,P_SPINS(d),XP(E)::R1(D)
- S(d);N_GUARD::QAB(I)
- S(d);SBLOCK::QAB1(I)
- P(f);::QAB1(I),XP(f)
- Tries
- Try
- B(G);XP(j)
- Threat
- QAB1(I)
- Vars
- K(e);OGATEB,P-FLIGHT,P_SPINS(d),XP(E)::R1(D)
- S(d);XQ(I)::R(D)
- P(f);SBLOCK,XP(E)::R(D)
- P(f);::QAB1(I),XP(f)
- Refutation
- S(c);XP(E)
- Try
- R(D);
- Threat
- QAR1(I),XP(h)
- Vars
- K(e);OGATEB,P-FLIGHT,P_SPINS(d),XP(E)::QAR1(I)
- S(d);SBLOCK::QAB1(I)
- Refutation
- S(d);XQ(I)
- Try
- R(D);
- Threat
- QAR1(I),XP(h)
- Vars
- K(e);OGATEB,P-FLIGHT,P_SPINS(d),XP(E)::QAR1(I)
- S(d);SBLOCK::QAB1(I)
- Refutation
- S(d);XQ(I)
- Try
- R(D);
- Threat
- QAR1(I),XP(h)
- Vars
- S(d);SBLOCK::QAB1(I)
- Refutation
- S(d);XQ(I)
- Try
- R(D);
- Threat
- QAR1(I),XP(h)
- Vars
- S(d);SBLOCK::QAB1(I)
- Refutation
- S(d);XQ(I)
- Try
- R(D);
- Threat
- QAR1(I),XP(h)
- Vars
- S(d);SBLOCK::QAB1(I)
- Refutation
- S(d);XQ(I)
- Try
- R(D);
- Threat
- QAR1(I),XP(h)
- Vars
- S(d);SBLOCK::QAB1(I)
- Refutation
- S(d);XQ(I)
- Try
- R(D);
- Threat
- QAR1(I),XP(h)
- Vars
- S(d);SBLOCK::QAB1(I)
- Refutation
- S(d);XQ(I)
- Try
- R(D);XS(c)
- Threat
- QAR1(I),XP(h)
- Vars
- S(d);SBLOCK::QAB1(I)
- Refutation
- S(d);XQ(I)
- Try
- R(D);
- Threat
- QAR1(I),XP(h)
- Vars
- S(d);SBLOCK::QAB1(I)
- Refutation
- S(d);XQ(I)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- K(e);OGATEB,P-FLIGHT,P_SPINS(d),XP(E)::QAR1(I)
- S(d);XQ(I)::R1(D),XP(h)
- Refutation
- P(i);CHECK,XR(D)
- Try
- R(D);
- Threat
- QAR1(I),XP(h)
- Vars
- K(e);OGATEB,P-FLIGHT,P_SPINS(d),XP(E)::QAR1(I)
- S(d);SBLOCK::QAB1(I)
- Refutation
- S(d);XQ(I)
- Try
- R(D);
- Threat
- QAR1(I),XP(h)
- Vars
- K(e);OGATEB,P-FLIGHT,P_SPINS(d),XP(E)::QAR1(I)
- S(d);SBLOCK::QAB1(I)
- Refutation
- S(d);XQ(I)
- Try
- Q(I);CHECK
- Vars
- K(e);P-FLIGHT,P_SPINS(d),XP(E)::R1(D)
- Refutation
- S(d);P_SPINS(d)
- Try
- Actual
- R(D);
- Threat
- QAR1(I),XP(h)
- Vars
- K(e);OGATEB,P-FLIGHT,P_SPINS(d),XP(E)::QAR1(I)
- S(d);XQ(I)::R(D)+B(G),XP(j)
- S(d);SBLOCK::QAB1(I)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).